Sauce Labs Maintenance Windows for Sauce Labs
We are investigating an issue with a third-party provider that is causing intermittent "Connection timed out", "pool communication" and "Unknown error while proxying appium request" errors when running tests in our EU and US datacenters. We will be performing emergency maintenance to our EU-Central and US-West datacenters this week to address this issue. Emergency maintenance windows will be posted to this page.
2022-October-28 Service Incident
Incident Report for Sauce Labs


Friday October 28th 2022, 19:13 - October 29th 2022 00:37 UTC

Friday November 11th 2022, 12:20 - 15:11 UTC

What happened:

Customers using legacy endpoints to fetch concurrency limits and usage observed an elevated number of 504 errors.

Affected endpoints:

  • GET
  • GET
  • GET

Why it happened:

This increased error rate was caused by connection issues between our ingress routing service and our API gateway service due to an incorrectly configured timeout setting. This timeout setting was introduced during a migration to the new API gateway. 

How we fixed it:

The team migrated back to the old API gateway to restore service, and we saw the error rate subside. 

What we are doing to prevent it from happening again:

The team reviewed all settings to ensure everything would work as expected as they resumed and finished the migration.

Posted Dec 22, 2022 - 15:08 UTC

After taking remedial action we see all REST services functioning as expected. All services are fully operational.
Posted Oct 29, 2022 - 00:55 UTC
We continue to investigate the issue affecting REST services across all our data centers including us-east-1. Our dashboard, saucectl, Sauce Connect and REST API methods are affected.
Posted Oct 29, 2022 - 00:24 UTC
We are seeing intermittent 504 errors on several of our REST services in our EU, US and APAC data centers. This affects our UI, Sauce Connect and other REST-based products. We are investigating.
Posted Oct 28, 2022 - 23:14 UTC
This incident affected: Live Browser Testing (US-West, EU-Central), Live Virtual Mobile Device Testing (US-West, EU-Central), Live Real Device Testing (US-West, EU-Central), Sauce Connect (US-West, EU-Central), Sauce Labs REST API (US-West, EU-Central), Sauce Labs Dashboard (US-West, EU-Central), Insights (US-West, EU-Central), and Native Framework Mobile App Testing (US-West, EU-Central).